Prof. H. A. Nicholson — New Devonian Fossils. 159 



Figs. 8, 9. Pileopsis variabilis, Galeotti (a Gasteropod). Eocene, Dieghem, near 

 Brussels. 8. One of Galeotti's original figures. 9. Another 

 specimen showing the horseshoe-shaped muscular impression. 

 10 to 13. Mannia Nysti, Dewalque. 10. Natural size ; all the other figures 

 greatly enlarged. Upper Miocene, Diest, three miles east of 

 Antwerp. 11, 12. Incomplete interior of dorsal valve. 13. 

 Section of both valves seen in profile. 



14, Ua. Terebratulina caput-serpentis, Linne. Crag, Antwerp. 14a. Enlarged. 



Near Antwerp. Museum of Brussels. 



15, 15a. Terebratulina Futord, Baudon. Eocene, Dieghem, near Brussels. 



Coll. of M. Colbeau. 15«. Enlarged. 

 16,16a. Terebratulina ornata, GiehA {T. Nysti, 'Bosofl.ei). Enlarged. Oiigo- 



cene formation, Hoesfelt, Belgian Limbourg. After Bosquet. 

 17, 17a, b. Ehynchonella Nysti, n. sp. 17a, b. Enlarged. Crag, near Antwerp. 



Museum of Brussels. 

 18, 18a. Shynchonella psittacea, Linne (?). Crag, Antwerp. Museum of Brussels. 



PLATE VIII. 



1, 2. Terehratula grandis, Blum. Crag, Antwerp. 2. Eeferred errone- 

 ously to Ttr. cranium. Museum of Brussels. 

 3, 4. Terebratula bisinuata, Lam. 3. Eocene, Dieghem, near Brussels, 

 Coll. of Mr. Vincent. 4. var. siiccinea, Desh. Eocene, Gand. 

 Coll. of M. Dewalque. 

 5 to 7. Terebratula Kicksii, Galeotti. Eocene. 5, 6. Eocene, Gand (given 

 to me by Dr. L. de Koninck). 7. T. trilobata, Galeotti. Eocene, 

 Brussels. 

 8, 8a, b. Argiope Lefevrei, Nyst. 8a, b. Enlarged. Middle Eocene, Laeken. 

 After JM yst and Lef evre. 

 9. Terebratula ' (?). Stated to be from the Lowest Eocene (assise 



Landenienne). Chercq, near Tournay. Museum of Brussels. 



10. Terebratulina Woodi, Nyst MS. Same locality and museum. 



11. Terebratula oarneoides, Guppy. Lowest Miocene (?), St. Bartholomew, 



Eastern West India Islands. Collected by Dr. Cleve. 



12. Argiope Clevei, n. sp. Same formation and locality. 



III. — Descriptions of New Fossils from the Devonian 



Formation of Canada. 



By H. Alleyne Nicholson, M.D., D.Sc, F.R.S.E. ; 



Professor of Natural History in University College, Toronto. 



{Continued from page 126.) 



Genus Botryllopora, Nicholson. Canadian Journal, no. Ixxx. 



Polyzoary calcareous, sessile, and encrusting, forming systems of 

 small circular discs, tlie upper surfaces of which are marked with 

 radiating ridges, upon which the cells are carried. Each disc is 

 attached by its entire lower surface, slightly convex above, with a 

 central non-poriferous space, round which a number of radiating 

 poriferous ridges occupy an exterior slightly elevated zone. Cells 

 forming a double series on each ridge, immersed, with rounded 

 mouths, which are not elevated in any part of their circumference 

 above the general surface. 



I have been unable to refer these singular Polyzoa to any existing 

 group, and have, therefore, been compelled to found a new genus for 

 their reception. In some respects the genus is allied to Defrancia ; 

 but the cells are not tubular, and no portion of them is free, whilst 

 the latter genus does not apjjear to have been ever detected in rocks 

 older than the Jurassic. The only Palasozoic genus of Polyzoa 



